We clear at Wedbush Futures. We offer no less than 25% of SPAN. I would never offer 10%. Too risky for the client and the broker/FCM. Looks like IB is a little worse than 50% for DT. A little higher than many, but not horrible. Overnight, they do require more than SPAN. That is much worse than most.

I don't disagree with My colleague above that smaller firms can not afford to have large overnight exposure. Also, I would never encourage anyone to overleverage his/her account even if they are given low margins as that would not be prudent risk management. But, we nevertheless choose to deal with multiple FCMs and smaller ones like AMP as well. The reality is that AMP Clearing pays a lot for the customer, and able to provide free platforms like Multicharts, CQG, etc. that otherwise would be costly to smaller traders. through the larger FCMs. Again, we choose to deal with a number of FCMs because you cant fit everyone under one umbrella.

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